Table 1.
Baseline characteristics
| Characteristic | Wait-listed (number = 150) | Medical-management (number = 200) | Surgical-treatment (number = 150) | P -value a |
|---|---|---|---|---|
| Female (number (%)) | 136 (91) | 174 (87) | 131 (87) | 0.5 |
| Age (years, mean (SD)) | 43.6 (9.2) | 43.9 (10.0) | 43.5 (9.5) | 0.9 |
| Married (number (%)) | 80 (54) | 116 (58) | 93 (62) | 0.1 |
| White (number (%)) | 139 (93) | 178 (89) | 141 (94) | 0.2 |
| Weight (kg, mean (SD)) | 134.7 (25.1) | 132.9 (24.7) | 127.9 (25.2) | 0.05 |
| BMI (kg/m2, mean (SD)) | 49.4 (8.2) | 48.0 (8.2) | 46.2 (7.4) | 0.003 |
| Hypertension (number (%)) | 99 (66) | 134 (67) | 92 (61) | 0.5 |
| Dyslipidemia (number (%)) | 89 (59) | 123 (62) | 90 (60) | 0.2 |
| Diabetes (number (%)) | 75 (50) | 80 (40) | 67 (45) | 0.9 |
| Depression (number (%)) | 98 (65) | 133 (67) | 88 (59) | 0.3 |
| SF-12 PCS (mean (SD)) | 35.5 (10.7) | 37.1 (10.1) | 41.5 (9.3) | < 0.001 |
| SF-12 MCS (mean (SD)) | 38.5 (10.9) | 40.8 (10.1) | 46.9 (8.5) | < 0.001 |
| EQ-Index (mean (SD)) | 0.691 (0.207) | 0.716 (0.196) | 0.792 (0.149) | < 0.001 |
| EQ-VAS (mean (SD)) | 52.9 (22.1) | 55.0 (19.4) | 63.6 (18.6) | < 0.001 |
| IWQOL-lite Total Score (mean (SD)) | 41.6 (21.1) | 44.9 (20.4) | 49.9 (19.3) | < 0.001 |
aUsing ANOVA for continuous variables and chi-square for dichotomous variables.
BMI, body mass index; EQ-Index, EQ-5D questionnaire index score; EQ-VAS, EQ-5D questionnaire visual analog scale score; IWQOL-Lite, Impact of Weight on Quality of Life - Lite questionnaire; MCS, mental component summary score; PCS, physical component summary score; SD, standard deviation; SF-12, Short Form 12 questionnaire.